Simplify the following and express the answers as
fractions,
(a) 1.72 + 7.65
(b) 9.88 - 3.25
+(c) 1.28 + 3.678 - 2.444
Answers
Answer:
A proper fraction is a number representing a part of a whole. This
whole may be a single object or a group of objects. An improper
fraction is a number in which numerator is greater than denominator.
• A mixed fraction is a combination of a natural number and a proper
fraction.
• Two fractions are multiplied by multiplying their numerators and
denominators separately and writing the product as
product of numerators
product of denominators
. For example,
×
× = =
×
2 3 2 3 6
.
5 4 5 4 20
• A fraction acts as an operator ‘of ’. For example,
1
3
of 3 is
1
3
× 3 = 1.
• The product of two proper fractions is less than each of the fractions,
For example,
1 1 1
2 3 6
× = and
1
6
is less than both
1
2
and
1
3
.
• The product of a proper and an improper fraction is less than the
improper fraction and greater than the proper fraction. For example,
1 3
2 2
× =
3
4
and
3
4
is less than
3
2
but greater than
1
2
.
• The product of two improper fractions is greater than the two fractions.
For example,
3 7
2 4
× =
21
8
and
21
8
is greater than both
3
2
and
7
4